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-   -   BUG 302.17 - can not access TTY console (http://www.nvnews.net/vbulletin/showthread.php?t=184947)

legluondunet 06-23-12 07:40 AM

BUG 302.17 - can not access TTY console
 
1 Attachment(s)
Hello,

I installed 302.17 beta drivers and I can not access to my TTY console (ctrl+alt+Fx): I obtain only a black screen. After some seconds, then my monitor shut up like there was no signal.

In dmesg I have this message:

Code:

NVRM: Your system is not currently configured to drive a VGA console on the primary VGA device.
The NVIDIA Linux graphics driver requires the use of a text-mode VGA console.
Use of other console drivers including, but not limited to, vesafb, may result in corruption and stability
problems, and is not supported.

Thanks for your help.

towo| 06-23-12 10:20 AM

Re: BUG 302.17 - can not access TTY console
 
Deactivate your console framebuffer.

legluondunet 06-23-12 11:11 AM

Re: BUG 302.17 - can not access TTY console
 
I don't think my framebuffer is on, but how could I verify?

Gusar 06-23-12 11:29 AM

Re: BUG 302.17 - can not access TTY console
 
If it wasn't on, you wouldn't get that message. Even if you deactivate it, you might still not get consoles. There's a bug affecting Geforce 8/9 cards, search around, plenty of threads about that.

towo| 06-23-12 12:54 PM

Re: BUG 302.17 - can not access TTY console
 
I have no problems with my GeForce 9600 GT, even with vesa framebuffer enabled.

artem 06-24-12 03:36 AM

Re: BUG 302.17 - can not access TTY console
 
See these threads:

http://www.nvnews.net/vbulletin/showthread.php?t=179891
http://www.nvnews.net/vbulletin/showthread.php?t=171448
http://www.nvnews.net/vbulletin/showthread.php?t=171282
http://www.nvnews.net/vbulletin/showthread.php?t=173214
http://www.nvnews.net/vbulletin/showthread.php?t=173965
http://www.nvnews.net/vbulletin/showthread.php?t=173214

In short disable framebuffer and set a usual VGA 80x25 console.

It's a regression but NVIDIA cannot solve it at this time (maybe they won't solve it ever).

legluondunet 06-24-12 07:12 AM

Re: BUG 302.17 - can not access TTY console
 
I disable my framebuffer as explained at this page:
https://wiki.ubuntu.com/FrameBuffer

In the file "/etc/default/grub/grub", I add "nofb" to this line:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nofb"

do a update-grub and I reboot the computer

At the reboot I still have framebuffer, to verify I'm using fbset:

Code:

$ fbset

mode "1680x1050-77"
    # D: 176.429 MHz, H: 82.908 kHz, V: 77.196 Hz
    geometry 1680 1050 1680 1050 32
    timings 5668 208 32 16 4 208 4
    rgba 8/16,8/8,8/0,8/24
endmode

I looked in my bios, there is no framebuffer option.
And in dmesg I have always the error message about vesafb.

And I still can not access to my TTY console.

another idea? Put "vga=" in the grub command line could disable framebuffer? I will get a try.

legluondunet 06-24-12 09:43 AM

Re: BUG 302.17 - can not access TTY console
 
Quote:

Originally Posted by Gusar (Post 2566464)
If it wasn't on, you wouldn't get that message. Even if you deactivate it, you might still not get consoles. There's a bug affecting Geforce 8/9 cards, search around, plenty of threads about that.

I finally find a way to deactivate framebuffer:
I blacklisted module vesafb, launch update-initramfs -u and reboot.
At reboot I had error messages (file not found) and the uglier plymouth animation I seen, good sign of a lack of framebuffer.

Effectively, if I do a:

$ lsmod |grep fb, nothing appear

in dmesg, there are no more error messages

Good, framebuffer is off, I try to access to my TTY console, nothing, black screen then my monitor suspend.

I finally revert all my configuration like it was before.
Now I have just to wait they will correct this bug soon.

artem 06-24-12 10:41 AM

Re: BUG 302.17 - can not access TTY console
 
Quote:

Originally Posted by legluondunet (Post 2566566)
...

Add
Code:

vga=normal nomodeset
to your GRUB options.

sjlopezb 06-24-12 05:16 PM

Re: BUG 302.17 - can not access TTY console
 
Quote:

Originally Posted by artem (Post 2566579)
Add
Code:

vga=normal nomodeset
to your GRUB options.

No. Correct is:

Code:

gfxpayload=text nomodeset
And...GO.


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